FORMATION AND DECAY OF SCALAR LEPTOQUARKS SQUARKS IN EP COLLISIONS/

The cross sections for the formation of scalar resonances, leptoquarks or squarks, in electron/positron-proton collisions at HERA are presen ted, including next-to-leading order QCD corrections. Depending mildly on the mass of the resonances, the K-factors increase the production cross sections by up to 30% if the target quarks are valence quarks. T he QCD corrections to the partial decay widths of leptoquarks/squarks to leptons and quarks are small. The electron spectrum in the decays i s nevertheless softened by perturbative gluon radiation at a level of 2 GeV for a leptoquark/squark mass of 200 GeV.